(19)

(11)

EP 2 404 204 A1

(12)

(43) Date of publication: 11.01.2012 Bulletin 2012/02 (21) Application number: 10707652.3 (22) Date of filing: 03.03.2010

(51) International Patent Classification (IPC):  G02B 6/28(2006.01) G02B 6/125(2006.01) (86) International application number: PCT/GB2010/050370 (87) International publication number: WO 2010/100489 (10.09.2010 Gazette 2010/36)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 03.03.2009 GB 0903605 30.09.2009 GB 0917137 (71) Applicant: Oclaro Technology Limited Caswell Towcester Northamptonshire NN12 8EQ (GB)	(72) Inventors: LANGLEY, Lloyd Northampton Northamptonshire NN4 6AU (GB) GRIFFIN, Robert Towcester Northamptonshire NN12 6RA (GB) BETTY, Ian, Brian Ottawa, Ontario K1N 8N8 (CA) (74) Representative: Talbot-Ponsonby, Daniel Frederick  Marks & Clerk LLP 4220 Nash Court Oxford Business Park South Oxford Oxfordshire OX4 2RU Oxford Business Park South Oxford Oxfordshire OX4 2RU (GB)